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Sagot :

MOZI

Bonsoir,

A = 6 + (3x -4) + 2 = 6 + 3x - 4 + 2 = 3x + 6 - 4 + 2 = 3x + 4

B = 4x - (7-2x) + 1 = 4x -7 + 2x + 1 = 6x -6 = 6 (x-1)

c = 8 + 7x  - 9 + 3x = 10x -1

d = 5x -4 + 2x + 6 = 7x +2

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